30+ ANS D’EXPERTISE

WHITE Logo LEROY

30+ YEARS OF EXPERTISE

• GAM-EG-13

• MIL-STD-461

• IEC 61850

• EN 50155

• IEC 62443-4-1

Embedded intelligence at the heart of your critical systems.

French designer and manufacturer of ruggedized PLCs, onboard computers, and I/O modules for Defense, Energy, Rail, and Industrial Infrastructure.

They rely on our onboard computers and control systems for their vital projects:

OUR INDUSTRIAL EXPERTISE

Hardware architectures designed for environments where failure is not an option.

From ruggedized PCB design to real-time software integration, we master the complete value chain of critical embedded electronics.

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Onboard Computers & Electronic Cards

Custom processor boards, isolated I/O cards, and communication gateways engineered for extreme environments.

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Modular I/O Platforms

Open and scalable architectures suitable for both regional rolling stock and large electrical substations. Hot-swappable modules for zero-downtime maintenance.

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Control-Command & Telecontrol

Automation of electrical substations and industrial protocol converters for real-time remote monitoring and control.

STRATEGIC MARKETS

One core expertise, four demanding domains.

Select a market to explore certified PLCs and onboard computers.

MILITARY-GRADE SEVERITY STANDARDS

Ruggedized PLCs for naval, land-based, and tactical systems

Hardened control-command equipment built to withstand extreme electromagnetic interference (EMI), heavy shock, vibration, and harsh marine environments. Our systems secure critical operations on surface vessels, submarines, tactical vehicles, and remote shelters.

  • GAM-EG-13 / MIL-STD-461
  • Salt Spray Protection
  • Physical DTD Isolation
  •  EMI Shielded Enclosures
Automates Durcis pour Systèmes Navals & Terrestres

EN 50155 & EN 45545 CERTIFIED

TCMS, VCU & I/O modules for rolling stock

Field-proven Vehicle Control Units (VCU) and TCMS architectures equipping metros, HSTs, regional trains, locomotives, and trams worldwide. Managing traction, braking, passenger access, HVAC, and onboard diagnostics.

  • EN 50155 Certified
  •  SIL2 / SIL4 Ready
  • TRDP & MVB Bus
  •  TS 50701 Cybersecurity
Agon Railway

IEC 61850 & IEC 60870 COMPLIANT

Substation automation & HV/MV power grid control

Telecontrol, real-time monitoring, and automation solutions for electrical substations, transformer stations, and smart grid infrastructures. Our controllers deliver zero-delay network redundancy and high-precision time synchronization.

  • IEC 61850 (GOOSE/MMS)
  • PTP IEEE 1588 Precision
  • PRP / HSR Redundancy
  • DNP3 / IEC 104 / Modbus
Automation de Sous-Stations Électriques & Postes HT/BT

HIGH AVAILABILITY & CYBERSECURITY

Infrastructure automation & tunnel ventilation control

Centralized control and remote management of safety-critical functions for large civil engineering structures, road and rail tunnels, utility networks, and hazardous industrial facilities operating under severe environmental stress.

  • ERPS Ring Topology
  • Long-Distance Remote I/O
  • IEC 62443-4-1 Process
  • 20+ Year Long-Term Support
Automatisation d'Infrastructures & Ventilation de Tunnels

A single technology core for four demanding sectors.

Whatever your industry, our industrial PCs and PLCs share the exact same engineering standards:

  • Ultra-rugged hardware: Built for zero-downtime environments (fanless design, conformal coating, shock and vibration resistance).

  • Native cybersecurity: DevSecOps integration compliant with IEC 62443-4-1, aligned with the upcoming European Cyber Resilience Act (CRA).

  • Guaranteed longevity: In-Service Support (ISS) with hardware and software maintenance guaranteed for over 20 years.

THE LEROY AUTOMATION & AGÔN ELECTRONICS SYNERGY

Find the exact solution tailored to your system specifications.

Through the complementary skills within the AGÔN Electronics group, we cover the full value chain: from ruggedized electronic hardware design and custom real-time software integration (TRDP, MVB, IEC 61850) to native cybersecurity and long-term obsolescence management (20+ years).

  • Full Value-Chain Control: Complete mastery from raw hardware components to complete automated systems.

  • Stringent Qualifications: Certified solutions for harsh environments (EN 50155, SIL, IEC 62443, MIL-STD).

  • Tailored Engineering: Prototyping and custom architecture design aligned with your specific constraints.

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Have a complex project architecture to size?

BUILT-IN SECURITY BY DESIGN

Native cybersecurity embedded directly into our PLCs.

At LEROY Automation, cybersecurity is not an afterthought: it is embedded in the silicon and built into our development lifecycles in accordance with IEC 62443-4-1. Our controllers already comply with the upcoming requirements of the European Cyber Resilience Act (CRA).

Secure Boot & HSM:

Cryptographic firmware verification before system boot-up.

Hardware DataDiode (DTD):

Physical unidirectional hardware isolation preventing IT network intrusions.

LEROY Cybersecurity Warranties

  1. IEC 62443-4-1 Certified Process: Rigorous industrial DevSecOps approach from architecture through maintenance.

  2. Vulnerability Tracking (CVE): Security updates and qualified patches provided throughout the hardware’s entire lifecycle (20+ years).

  3. Railway TS 50701 Compliance: Cyber risk management tailored to rolling stock automation systems.

LATEST INSIGHTS & NEWS

Updates from LEROY Automation.

DATADIODE DTD IEC 62443 4 2 SL3 CERTIFIED EN
Cybersecurity Railway

LEROY Automation reaches a new milestone in railway cybersecurity At LEROY Automation, cybersecurity is engineered from the ground up to address the specific constraints of the rail sector. Today, we

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CRA READY (4)
News

Executive Summary Prior to December 11, 2027, the CRA compliance of products already on the market relies exclusively on Article 14. The technical requirements of Annex I are not applicable,

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Un partenaire stratégique pour vos missions critiques
Defense News

Automation: the critical link in the defense chain Automation: the critical link in the defense chain In land-based, naval, or embedded defense systems, automation is a critical functional element of

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A critical project in mind? Let's discuss.

Our application engineers will evaluate your architecture and respond within 24 business hours.